Crusher.



M. G. BUNNELL.

GRUfiHI-IR.

APPLICATION FILED APR.20,1908.

926,725. Patented July 6, 1909.

MORTON G. BUNNELL, OI" PORTER, INDIANA, ASSIONOR TO AUSTIN )lANUl AU'lUllING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION Ol ILLINOIS.

CRUSHER.

Specification of Letters Patent.

latented July 6, 1909.

Application filed April 20, 1908. Serial No. 428,034.

To all whom it may concern:

Be it known that I, Monrox G. BUNNELL, a citizen of the United States of America, and resident of Porter, Porter county, Indiana, have invented a certain new and usel'ul Improvement in Crushers, of which the l'ollow ing is a specification.

My invention relates to jaw-crushcrs oi the type shown, for example, in Letters Patent Number 839,103, issued December 25, [or improvement in crushing machines. In these jaw-erushers, as is well known, it is desirable that the dies or crushing l'aces ol' the two opposing jaws be adjustable toward and away from each other, b i the insertion ol" gibs or shims behind the same, whereby the shape and size of the crushin hopper may be changed or varied with respect to diii'erent kinds of material, or 01 the purpose of varying the size and character oi the product. My invention is, therefore, addressed pri marily to the problem of readily inserting and removing the said gibs or shims with little inconvenience or labor as possible, so as to change the relative positions of the said dies or crushing faces ol' the jaws, and of securely holding the same in place thereon; and with a view to improving the machine and increasing its elticiency in this respect, my invention contemplates a construction by which the gibs or shims can be easily inserted back of the dies or crushing faces of the aws, without removing the latter, and in which clips or clamping yohes, or other equivalent means, are arranged to embrace the sides of said dies or crushing laces, said clips or yokes, or other clamping means, bearing upon the tops of said dies or crushing laces to hold the same down in place upon the seats provided l'or their lower ends, and the construction being such that the said dies or crushing faces are also held tightly clamped upon the gibs or shims or other supports provided or their backs; the insertion or removal of said gibs or shims being possible by simply loosening the clamping nuts at the lower ends of said clips or yokes, as will hereinafter more fully appear.

By my invention I am enabled to easily and quickly change the size or shape of the crushmg hopper without removing the jaws or any portions thereof.

In the accompanying drawings,l igure 1 is a sectional side elevation oi the crushing hopper ot a aw crusher embodying the principlcs of my invention. Fig. 2 is a detail cross section on line 2-2 in Fig. 1. Fig. 3 is a cross section on line 33 in Fig. 1.

As thus illustrated, the crusher frame A can be ol any suitable, known or approved construction, and has a seat a and a shoulder or overhang 0., together with vertical openings or recesses a that extend through said shoulder, permitting the upper end of the yoke 13 to be moved back and forth horizontally. The clip or yoke B ext ends vertically in said holes or 'ecesscs, and has its lower ends provided with fastening nuts I) that bear upon the under surface of the shoulder (1/, as shown. A die or crushing lace C rests upon the seat a, and. the top or upper end oi said clip or yoke bears upon the upper end of said die or crushing lace. With this arrangement a gib or shim 0 may be inserted back of the die or crushing lace, the said clip or yoke being of a size to completely straddle and embrace the upper end oi the said die or crushing lace, as well. as said gib or shim. By loosening the nuts b, the said gib or shim can be readily inserted or removed, there being nothing to obstruct the direct downward insertion and upward removal of the same. The forward and back adjustment of the upper end of the yoke B depends, of course, upon the thickness of the shim or shims back of the die.

The movable jaw D can be of any suitable construction, and may be operated in any suitable manner. It has a seat (Z and a shoulder or overhang d, which latter has openings or recesses (Z as shown, which openings permit l'orward and back adjustment of the upper end of the yoke B, depending on the thickness of the shim or shims back of the die F. The clip or yoke E straddles the die F and extends through the openings (1, and has its lower ends provided with clamping nuts 0, which latter bear upon the under surface of the shoulder (Z, to hold said die or crushing face in place on the seat (Z, and in position for cooperating with the other jaw. The said clip or yoke E is much larger than the clip 13, and bears upon the top oi the die or face plate 1*, exactly as the clip or yoke B bears upon the lace plate or die C, whereby both are securely but removably clamped in place. A gib or shim f may be inserted back 01' the die 1 this feature being the same as in the other jaw.

The recesses a and d permit variation in the inclination of the clips or yokes B and F, as explained, according to the number and shape of the gibs or shims back of the dies or face plates.

I do not, of course, limit myself to the eX- act construction shown and described.

W hat I claim as my invention is:

1. A crusher having crushing instrumentalities including a die or crushing face, means for supporting the same, clamping means embracing the sides of said die and bearing upon the top thereof to hold the same in place upon said supporting means, and means permitting the upper end of said clamping means to be adjusted back and forth horizontally.

2. A. crusher having crushing instrumentalities including a die or crushing face, means for supporting the same, and means including an inverted U-shaped clamping member embracing and bearing down upon said die to hold the same in place upon said supporting means.

3. A crusher having crushing instrumentalities including a die or crushing face, means for supporting the same, an imperfo rate shim or gib, and retaining means for the die bearing oown upon the upper end thereof, permitting direct downward edgewise insertion of said shim or gib at the back thereof.

4. A crusher having crushing instrumentalities including a die or crushing face, an inverted U-shaped member embracing the upper end of said die, bearing upon the upper end thereof, disposed at an angle oblique thereto, means back of said die for securing the lower ends of said member, and means engaging the lower end of said die to support the same.

5. A crusher having crushing instrumentalities including a die or crushing face, a shim or gib back of said die, a clip or yoke embracing said die and shim and engaging the die, means back of said shim for securing the lower ends of said clip or yoke, and means engaging the lower end of said die to support the same.

6. A crusher having crushing instrumentalities including a movable jaw, a die on said jaw, a clip or yoke embracing the said jaw and die, bearing upon the upper end of the latter, and removable means for fixing the lower ends of said clip or yoke to said movable jaw.

'7. The improved crusher jaw, having a die or crushing face therefor, the same provided with an inverted U-shaped clamping member for the said die or crushing face arranged oblique thereto, whereby the lower ends of said member are some distance from the back of said die and whereby the upper end of said member imposes a downward and backward pull on said die, substantially as shown and described.

Signed by me at Chicago, Illinois, this 8th day of April, 1908.

MORTON G. BU NNELL.

Vv'itnesses SARAH Lnwis, A. J. SAUsEn. 

